David shields



(No Model.)

D. SHIELDS. MEANS FOR UNITING TOOLS-T0 HANDLES, 620..

No. 492,474; Patented Feb. 28, 1893.

iINrrnn Snares ATENT @rrrcm DAVID SHIELDS, OF ERIE, PENNSYLVANIA,ASSIGNOR TO THE GRISWOLD MANUFACTURING COMPANY, OF SAME PLACE.

MEANS FOR UNiTiNG TOOLS TO HANDLES, 86C.

SPECIFICATION forming part of Letters Patent No. 492,474, dated February28, 1898. Application filedMaroh 18, 1892. erial No. 425,437. (Nomodel.)

To aZZ whom it may concern:

Be it known that I, DAVID SHIELDS, a citizen of the United States, and aresident of Erie, county of Erie, and State of Pennsylvania, haveinvented a new and useful Improvement in Means for Uniting Tools toHandles, &c., of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, makingpart of this specification.

My invention relates to the manner of uniting a tool or other implementor device to a bar or handle of wood and it consists in providing a toolor implement with a divided shank, the parts of which overlap and havetoothed or roughened interlocking faces, and the combination of the samewith a socketed wooden bar or handle by which the parts of the dividedshank are held firmly interlocked; also in certain details ofconstruction and arrangement of parts as hereinafter described andclaimed.

In the accompanying drawings:-Figure 1 represents in side elevation astovecover lifter with the handle partly cutaway to show theimprovement. Fig. 2 is a side view of the parts detached, the handlebeing indicated in dotted lines, and Fig. 3 shows one end of asingle-tree in section, with a hook applied thereto, in accordance withmy invention.

A indicates a stove lifter provided with a divided shank the parts ofwhich are indicated by the letters a and a, and B is ahandle, made,preferably, of wood, though other suitable material may be employed. Thehandle is shown as having the perforation extending from end to end andof a diameter conforming to and snugly fitting the tool shank. The shankis shown made somewhat longer than the handle with the adjacent ends ofthe parts thereof cut away on their adjacent faces to about one-half thediameter of the shank so as to permit them to overlap, as shown, andprovided on such cut away portions with transverse interlockingserrations or roughened faces. The ends of these cut away portions areshown beveled on their adjacent faces, to adapt one to pass by and rideup on the other, when inserted in the handle and each part is shownprovided with ashoulder against which the ends of the handle abut,

when the parts of the shank are driven to place therein, In thisconstruction, the handle is first driven upon the part a, up to andagainst the shoulder a after which the part a is driven in,its cut awayend riding up on the cut away portion of the part a, of the shank,crowdingoutward the wood sufficiently to allow the teeth of one to passby those of the other until driven to place as indicated in Fig. 1. Theelastic or resilient character of the Wood forces the teeth of the partsinto engagement and prevents accidental withdrawal of the shank or thedisplacement of the parts.

In Fig. 3 I have shown the manner of attaching a hook to a single-tree.In this construction a socket is formed in the end of the single-tree,indicated at O. The hook D is provided with a divided shank similar tothat above described, except that the portion a, separate from the hook,is without a shoulder and is first inserted and driven to the bottom ofthe socket after which the hook portion of the shank a, is driven inuntil its shoulder abuts against the end of the single tree and thetoothed, overlapping parts thereof are interlocked in a manner similarto that above described. The shank in this case may be made polygonal inform, or it may be provided with one or more spurs c on the part a,which, when the part a. is driven in, is forced into the wood and servesto prevent the shank from turning in the socket therein and also frombeing withdrawn.

It will be apparent from the foregoing description that the handles ofvarious kinds of tools and implements may be readily united to theshanks thereof by the construction described, and that when so united,they will not be liable to accidental displacement or separation.

While I have shown the device applied to a stove-cover lifter and to asingle tree, I do not wish to be restricted to such use thereof, butdesire to claim the construction broadly, for the purpose described,wherever the same may be found to be applicable.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. A tool or implement of metal having a divided shank, the adjacent,rigid ends of Which overlap and are cut away on adjacent sides toconform to the diameter of the shank, said overlapping portions beingprovided with interlocking teeth,in combination With a socketed handleof resilient material which will yield to permit the teeth to pass byeach other and then, by its resiliency, force the teethinto engagement,substantially as described.

2. The combination with a socketed handle of resilient material, of abit or tool having a divided shank, the rigid ends or extensions ofwhich are cut away, on adjacent faces, to overlap in said handle andhave interlocking teeth, forced into engagement'by the resilient actionof the handle material, substantially as described.

.my hand this 16th day of March, A. D. 1892.

DAVID SHIELDS. Witnesses:

lVIATTHEW GBISWOLD, J r., J. M. SHERWIN.

